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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249452Generated: October 29, 2026

Hydrochloric Acid → HCID 45261616, compound

https://huagongshe.com/reaction/249452

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDichloromethaneHCID 6344—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 54199498HCID 54199498—
SolventEthanolHCID 702—
ProductHCID 45261616HCID 4526161670%

Reaction Steps

(R)-1-[2-[[2,2-bis(2-Ethylphenyl)ethenyl]oxy]ethyl]-3-piperidine carboxylic acid ethyl ester (1.20 g, 0.00275 mol) (prepared as described in Method D) was dissolved in ethanol (10 ml) and 12 N sodium hydroxide solution (0.7 ml) was introduced. After stirring the solution at room temperature for 5 h, 37% hydrochloric acid solution was added until the pH was measured as ca. 1. Dichloromethane (250 ml) was introduced, and the mixture was dried (Na2SO4), filtered and evaporated to a residue, which was co-evaporated with acetone. Recrystallization from acetone provided the title compound (0.85 g, 70%) as a white solid, m.p. 205°-206°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05214057
Source datasetuspto-grants-1993_05
ORD IDord-191da13d018c497187fae170ff79b99f
Source noteuspto-grants-1993_05